If
you don't see a big "Start Analysis" link, please see
the FAQ
for details on how to enable Java.

Please note: Netalyzr is not only a
debugging tool — it is also the foundation of a comprehensive
measurement study compiling a survey of the health of the Internet's
edge. By running Netalyzr and helping us spread the word you are
contributing crucially to the quality of our
study. Thanks for your help!